<template>
<div class="app-container">
<el-form label-width="120px">
<el-form-item label="信息描述">
<el-tag type="info">excel模版说明</el-tag>
<el-tag>
<i class="el-icon-download"/>
<a :href="OSS_PATH +
'/static/01.xls'">点击下载模版</a>
</el-tag>
</el-form-item>
<el-form-item label="选择Excel">
<el-upload
ref="upload"
:auto-upload="false"
:on-success="fileUploadSuccess"
:on-error="fileUploadError"
:disabled="importBtnDisabled"
:limit="1"
:action="BASE_API+'/eduservice/subject/addSubject'"
name="file"
accept="application/vnd.ms-excel">
<el-button slot="trigger" size="small" type="primary">选取文件</el-button>
<el-button
:loading="loading"
style="margin-left: 10px;"
size="small"
type="success"
@click="submitUpload">{{ fileUploadBtnText }}</el-button>
</el-upload>
</el-form-item>
</el-form>
</div>
</template>

<script> 
 export default {
data() {
 return {
 BASE_API: process.env.BASE_API, // 接口API地址
 fileUploadBtnText: '上传到服务器', // 按钮文字
 OSS_PATH: '',
 importBtnDisabled: false, // 按钮是否禁用,
 loading: false
 }
 },
  created () {

  },
  methods:{
      submitUpload() {
 this.fileUploadBtnText = '正在上传' 
  this.importBtnDisabled = true
 this.loading = true
 this.$refs.upload.submit()
 },
 fileUploadSuccess(response) {
        if (response.success === true) {
this.fileUploadBtnText = '导入成功' 
this.loading = false
 this.$message({
 type: 'success', 
  message: response.message
 })
 }
 },

 fileUploadError(response) {
     this.fileUploadBtnText = '导入失败'
 this.loading = false
 this.$message({
 type: 'error',
 message: '导入失败'
 })
 }
  }
 }
</script>